CalculationMode

CalculationMode enumeration

Specifies project calculation mode.

public enum CalculationMode

Values

NameValueDescription
None0None. Project dates and costs are not recalculated in this mode.
Automatic1Automatic mode. Project dates and costs are recalculated when using this mode.
Manual2Manual mode. Only necessary fields are recalculated in this mode, for example UIDs and IDs of objects.

Examples

Shows how to use auto calculation mode.

var project = new Project
{
    CalculationMode = CalculationMode.Automatic
};

// Set project start date and add new tasks
project.Set(Prj.StartDate, new DateTime(2015, 4, 15));
var task1 = project.RootTask.Children.Add("Task 1");
var task2 = project.RootTask.Children.Add("Task 2");

// Link tasks
project.TaskLinks.Add(task1, task2, TaskLinkType.FinishToStart);

// Verify dates have been recalculated
Console.WriteLine("Task1 Start + 1 Equals Task2 Start : {0} ", task1.Get(Tsk.Start).AddDays(1).Equals(task2.Get(Tsk.Start)));
Console.WriteLine("Task1 Finish + 1 Equals Task2 Finish : {0} ", task1.Get(Tsk.Finish).AddDays(1).Equals(task2.Get(Tsk.Finish)));
Console.WriteLine("RootTask Finish Equals Task2 Finish : {0} ", task2.Get(Tsk.Finish).Equals(project.RootTask.Get(Tsk.Finish)));
Console.WriteLine("Project Finish Date Equals Task2 Finish : {0} ", task2.Get(Tsk.Finish).Equals(project.Get(Prj.FinishDate)));

Shows how to use none calculation mode.

var project = new Project
{
    CalculationMode = CalculationMode.None
};

// Add a new task
var task = project.RootTask.Children.Add("Task");

// Note that even ids were not calculated            
Console.WriteLine("Task.Id Equals 0 : {0} ", task.Get(Tsk.Id).Equals(0));
Console.WriteLine("Task.OutlineLevel Equals 0 : {0} ", task.Get(Tsk.OutlineLevel).Equals(0));
Console.WriteLine("Task Start Equals DateTime.MinValue : {0} ", task.Get(Tsk.Start).Equals(DateTime.MinValue));
Console.WriteLine("Task Finish Equals DateTime.MinValue : {0} ", task.Get(Tsk.Finish).Equals(DateTime.MinValue));
Console.WriteLine("Task Duration Equals 0 mins : {0} ", task.Get(Tsk.Duration).ToString().Equals("0 mins"));

// Set duration property
task.Set(Tsk.Duration, project.GetDuration(2, TimeUnitType.Day));
Console.WriteLine("Task Duration Equals 2 days : {0} ", task.Get(Tsk.Duration).ToString().Equals("2 days"));
Console.WriteLine("Task Start Equals DateTime.MinValue  : {0} ", task.Get(Tsk.Start).Equals(DateTime.MinValue));
Console.WriteLine("Task Finish Equals DateTime.MinValue  : {0} ", task.Get(Tsk.Finish).Equals(DateTime.MinValue));

Shows how to use manual calculation mode.

var project = new Project
{
    CalculationMode = CalculationMode.Manual
};

// Set project start date and add new tasks
project.Set(Prj.StartDate, new DateTime(2015, 4, 15));
var task1 = project.RootTask.Children.Add("Task 1");
var task2 = project.RootTask.Children.Add("Task 2");

// The necessary properties are set in manual mode
Console.WriteLine("Task1.Id Equals 1 : {0} ", task1.Get(Tsk.Id).Equals(1));
Console.WriteLine("Task1 OutlineLevel Equals 1 : {0} ", task1.Get(Tsk.OutlineLevel).Equals(1));
Console.WriteLine("Task1 Start Equals 15/04/2015 08:00 AM : {0} ", task1.Get(Tsk.Start).Equals(new DateTime(2015, 4, 15, 8, 0, 0)));
Console.WriteLine("Task1 Finish Equals 15/04/2015 05:00 PM : {0} ", task1.Get(Tsk.Finish).Equals(new DateTime(2015, 4, 15, 17, 0, 0)));
Console.WriteLine("Task1 Duration Equals 1 day : {0} ", task1.Get(Tsk.Duration).ToString().Equals("1 day"));
Console.WriteLine("Task2 Start Equals 15/04/2015 08:00 AM : {0} ", task2.Get(Tsk.Start).Equals(new DateTime(2015, 4, 15, 8, 0, 0)));
Console.WriteLine("Task2 Finish Equals 15/04/2015 05:00 PM : {0} ", task2.Get(Tsk.Finish).Equals(new DateTime(2015, 4, 15, 17, 0, 0)));
Console.WriteLine("Task2 Duration Equals 1 day : {0} ", task2.Get(Tsk.Duration).ToString().Equals("1 day"));

// When we link two tasks together their dates are not recalculated in manual mode
project.TaskLinks.Add(task1, task2, TaskLinkType.FinishToStart);

// Task 2 Start has not been changed
Console.WriteLine("Task1 Start Equals Task2 Start : {0} ", task1.Get(Tsk.Start).Equals(task2.Get(Tsk.Start)));
Console.WriteLine("Task1 Finish Equals Task2 Finish : {0} ", task1.Get(Tsk.Finish).Equals(task2.Get(Tsk.Finish)));

See Also